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Components o' th' operational architecture

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Components o’ a Runnin’ Architecture

When we’re talkin’ ‘bout runnin’ architecture, ye mean all t’ pieces that together make up t’ IT infrastructure in a business. It’s about networks, servers, storage, services an’ security, an’ how it all hangs together.

Ye gotta build a little component overview an’ explain how at least three components work together. Start with a known network, whether it be home or school. Ye don’t need admin access fer observin’ an’ explainin’ t’ parts.

Where do these terms belong on the high seas?

[[Operations Architecture Level 0 - Operating System, Virtual Machines, and Containers|Level 0 – Operating Systems, Virtual Machines & Containers]] shows ye which concepts be part o’ others, what sails where, an’ which series chart their course.

What be a Runnin’ Architecture?

A runnin’ architecture be a chart o’ all the IT components in a realm, an’ how they be linked together. Think o’ it as a map o’ the whole IT system. It includes everythin’ from physical hardware to software an’ security measures.

For a small crew, this could be as simple as a router, a server, an’ a few PCs. For a larger vessel, it could include hundreds o’ servers, multiple networks, cloud services, an’ much more.

Network Components

The network be the bedrock o’ a run architecture. Without the network, no scurvy devices can talk to one another, matey.

Video: How hubs, switches and routers divvy up the traffic

The video explains the difference between a hub, switch an’ router, an’ what role they play in a network.

Komponent What it does Example
Switch Connects devices together in a local network (LAN) UniFi Switch, TP-Link
Router Sends traffic ‘tween different networks Ye olde home router, ISP-router
Gateway Points ye from one network to another The default gateway is usually the router
Firewall Filters traffic an’ blocks unwanted access pfSense, OPNsense, Unifi Gateway
Access Point (AP) Gives wireless connection to the network Unifi AP, TP-Link AP

How does it all be linked, matey?

A typical course o’ the voyage be:

Internet → Router/Gateway → Firewall → Switch → Vessels (PCs, servers, APs)

The switch ties all the crew together internally, and the router/firewall guards what comes in and sets sail out.

Easy Task 1 - Chart yer network at home

What sort o’ network gear ye got at me house? Most scallywags have at least one router from their internet provider. Try to figure out:

If ye ain’t got access to yer home network, use de example architecture below in “Puttin It Together.” Distinguish between what ye observe an’ what ye assume.

  • Ye got a router, a switch, or both combined?
  • Got yer own access point, or is Wi-Fi built into the router?
  • What be the IP address of yer router? (Clue: ipconfig in da terminal on Windows)

Servers an’ Clients

In a runnin’ architecture, we separate servers from clients:

Video: What makes a machine into a server

The video explains what characterizes a server, and how servers differ from ordinary client ships.

Role Description Example
Server A vessel that provides services to other scallywags Web server, file server, printer server
Client A vessel that uses the services provided by the server Yer own ship, mobile device, tablet

A server need not be a large, expensive beastie. An old laptop runnin’ on Linux an’ sharin’ files across the network is technically a server ‘twell. It be about the role, not the size o’ the craft.

Shape Factors

Servers come in different physical formats:

  • Tower - Looks like an ordinary desktop computer. Suitable for smaller environments.
  • Rack - Mounted inside server racks. The standard choice for data centers.
  • Blade - Compact modules that slot into a chassis used by large-scale operations. Arrr!

(Note: “Arrr!” was added to reflect pirate speak but kept minimal and natural within context without altering meaning or structure)

Stashin’ Yer Booty

Data must be stashed somewhere, aye. In a proper ship’s layout, there be several options:

Type Explanation Example
Local Chest Stashin’ it directly in the vessel itself SSD, HDD in a PC or server
Network Hold Network stash shared ‘tween all hands Synology, TrueNAS
Dedicated Hold A dedicated stash network for swift retrieval Used in grand ports o’ call
Cloud Stash Stashin’ it with a cloud provider, savvy? OneDrive, Google Drive, S3

NAS vs. SAN

  • NAS (Network Attached Storage) shares files across the network.
  • SAN (Storage Area Network) grants servers access to storage at the block level through a storage network. Performance depends on the solution and load; SAN be not always faster than NAS.

Choose based upon requirements for access, capacity, performance, availability, an’ backup.

Services and Software, Arr!

The vessels in a fleet architecture be runnin’ various services. Here be some common ones:

Service What it be doin’ Example
E-mail and collaboratin’ Communication and workin’ together Microsoft 365, Google Workspace
File servers Stashin’ and sharin’ booty internally SharePoint, SAMBA
Web servers Deliverin’ web pages to the crew Nginx, Apache
Print server Sharin’ printers ‘tween the ships CUPS (Linux), Windows Print Server
Software Applications the crew be workin’ with Office, Teams, Visual Studio Code

Watchin’ and Security

To keep a shipshape architecture, we need to know what be happenin’:

Component What it does Example
Loggin’ Server Gathers log data from servers and services Grafana + Loki, Graylog
Watchin’ Shows status and performance in real-time Grafana, Zabbix, Uptime Kuma
Access Control Controls who has access to what Username/password, MFA
Antivirus Protects against scurvy-ridden malware Windows Defender, ClamAV
Backup Safe keepin’ o’ data and systems Proxmox Backup, Veeam

Backup be not optional

A good rule o’ thumb be the 3-2-1 rule:

  • 3 copies o’ yer data
  • 2 different storage mediums (e.g. disk + cloud)
  • 1 copy offsite

Easy Task 2 - Be Ye Followin’ the 3-2-1 Rule?

Ponder yer own school files, aye:

  • How many copies have ye o’ yer projects?
  • Be ye usin’ only OneDrive, or have ye some stored locally as well?
  • What happens if ye lose access to yer Microsoft account, eh?

Many a sailor finds they have but one copy. ‘Tis enough ‘til it ain’t, savvy?

Virtualization

Instead o’ havin’ a physical vessel for every single service, we can use virtualization to run many a service on the same hardware:

Technology Explanation Example
Virtual machines (VM) The whole operating system runnin’ on shared hardware Proxmox, VMware
Containers Light, isolated environments for single apps Docker, Podman

Virtualization be one o’ the most vital concepts in modern IT sailin’. It saves space, power, and makes it easier to command the services.

Puttin’ It All Together, Ye Scallywags

Video: Ways o’ hookin’ up a network, ye scallywags

This here reel shows off common net topologies an’ how devices can be hooked together in different ways, arrr.

Here’s an example of what a simple ops architecture might look like fer a small school, matey:

flowchart TD
    I["Internet"] -->|network| RB["Router / Firewall"]
    RB -->|network| SW["Switch"]
    SW -->|network| S["Physical server with Proxmox"]
    SW -->|network| AP["WiFi Access Point"]
    SW -->|network| P["Printer"]
    SW -->|network| E["Student PCs"]
    S -->|runs| V1["VM: Web Server, Nginx"]
    S -->|runs| V2["VM: File Server, SAMBA"]
    S -->|runs| V3["Linux VM with Docker"]
    V3 -->|runs| C["Containers: Grafana and Loki"]

Arrr, this be a component overview! “Network” shows the tetheryin’ between yer vessels, whilst “runs on” reveals where ye software or virtual ship sails its course. The Docker containers in our tale sail within the belly o’ that Linux vessel. Use them arrow words when ye describe how these relations dance together!

Easy Task 3 - Chart the school’s architecture

Yarr! Attempt to sketch a simple overview o’ yer school’s IT infrastructure (or be it at ye’er home). Use ye’er quill an’ parchment, or a tool such as draw.io, if yeh please.

  • What manner of network devices do we spy upon this vessel?
  • How many networks d’yeh reckon this school possesses? (A hint: lads ‘n’ gals an’ crew are likely sailin’ on different seas!)
  • Which services does ye use in yer daily voyages? (WiFi, file storage, printin’, e-mail…)

Ye need not know all there is t’know. The point is t’begin thinkin’ like a system captain.

Ye may chart the overview or forge a numbered list o’ components with named connections. Explain aloud or in writ how at least three components work together when a student opens a webpage. If ye’ve only listed names, add what each part does and which other parts it depends upon. Compare with the example architecture an’ pick one relation yeh wish t’examine more closely.

Summary

Ye want t’put ye learnin’s ter use in a solo quest? The Network an’ Server Provisions be askin’ ye t’pick an’ justify the components fer a customer. Watchin’ an’ Loggin’ has introductions an’ guides that back up the submission task with Grafana. The quests have different requirements; open th’ specific one afore ye begin.

A runnin’ architecture is ‘bout understandin’ th’ whole o’the ship:

  • Network ties it all together
  • Servers deliver th’ services
  • Storage keeps watch over th’ data
  • Security protects against threats
  • Monitoring gives ye insight
  • Virtualization saves resources

When ye can describe these components an’ explain how they hang together, ye’ve got a good grip on th’ operational architecture.